@article {69,
	title = {Chemical analysis of metals in acanthocephalans using energy dispersive X-ray analysis (EDXA) in conjunction with a scanning electron microscope (SEM)},
	journal = {Comparative ParasitologyComp. Parasitol.},
	volume = {74},
	year = {2007},
	note = {Export Date: 23 April 2013Source: ScopusCODEN: COPAF:doi 10.1654/4258.1Language of Original Document: EnglishCorrespondence Address: Amin, O.M.; Institute of Parasite Diseases, P.O. Box 28372, Tempe, AZ 85285-8372, United States; email: omaramin@aol.comReferences: Anantaraman, S. R. 1976. Histochemical characteristics of the egg envelopes of Acanthosentis sp. (Acanthocephala). Zeitschrift f{\"u}r Parasitenkunde (Berlin, Germany) 48:227-238Cazaux, J., X-ray probe microanalysis and scanning x-ray microscopes (1984) Ultramicroscropy, 12, pp. 321-332;Heckmann, R.A., Energy dispersive x-ray microanalysis in conjunction with electron optics, a tool for analyzing aquatic animal diseases and deaths (1996) Microscopy and Analysis, 17, pp. 27-29; 
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},
	month = {2007///},
	pages = {388 - 391},
	abstract = {Using energy-dispersive x-ray analysis (EDXA) in conjunction with a scanning electron microscope, high levels of sulfur were recorded in proboscis hooks of 5 species of Acanthocephala: Neoechinorhynchus qatarensis Amin, Saoud, and Alkuwari, 2002; Acanthocephalus dims (Van cleave, 1931); Neoechinorhynchus idahoensis Amin and Heckmann, 1992, Echinorhynchus salmonis (M{\"u}ller, 1784); and Pseudoacanthocephalus sp. Petrochenko, 1956. Sulfur was also present in eggs of N. qatarensis. No sulfur was recorded in the body of worms. The 5 species of Acanthocephala were obtained from several fish hosts and 1 toad species from 7 geographical locations. Sulfur ions are probably present in disulphide bonds characteristic of 2 amino acids, cystine and cysteine, which are common amino acids in the protein of mammalian hair and horns and are probably associated with the hardness of acanthocephalan proboscis hooks and egg shells.},
	keywords = {Acanthocephala, Acanthocephala (worms), Acanthocephalus, Anura, Echinorhynchus salmonis, EDXA, Mammalia, Metal analysis, Neoechinorhynchus, Pseudoacanthocephalus, Sulfur in proboscis hooks and eggs},
	isbn = {15252647 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-34547790293\&partnerID=40\&md5=ec2530f77c3eefc3cfc08df5bd0e521e},
	author = {Heckmann, R.A. and Amin, O.M. and Standing, M.D.}
}
